CH194095A - Process for the preparation of an acidic chromating dye of the anthraquinone series. - Google Patents

Process for the preparation of an acidic chromating dye of the anthraquinone series.

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Publication number
CH194095A
CH194095A CH194095DA CH194095A CH 194095 A CH194095 A CH 194095A CH 194095D A CH194095D A CH 194095DA CH 194095 A CH194095 A CH 194095A
Authority
CH
Switzerland
Prior art keywords
amino
dye
preparation
carboxylic acid
anthraquinone series
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH194095A publication Critical patent/CH194095A/en

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Description

  

  Verfahren zur Darstellung eines sauren     Chromierungsfarbstoffes     der     Anthraehinonreihe.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung eines sauren     Chro-          mierungsfarbstoffes    der     Anthrachirronreihe,     welches dadurch gekennzeichnet ist, dass man       1-Amino-2,4-dibromanthrachinon        mit4-Amino-          4'-ogydiphenylmethan-3'-carbonsäure    konden  siert und in dein so erhaltenen Produkt das       2-ständige    Bromatom durch die     Sulfogruppe     durch Erhitzen in Gegenwart von Phenol,

         Alkalisulfit    und Wasser ersetzt.  



  <I>Beispiel:</I>  Tauscht man in     1-Amino-2,4-dibromanthra-          chinon    das in     4-Stellung    stehende Bromatom  gegen     4-Amino-4'-ogydiphenylmethan-3'-car-          bonsäure    durch Erhitzen der Komponenten  in Gegenwart von wasserfreiem     Kaliumacetat,     Kupferacetat und gut \     hronze    in     Amylalko-          hol    als Lösungsmittel aus, so erhält man die       1-Amino    - 2 -     bromanthrachinorr-4-(p-        aminodi-          phenylmethan-4'-ogy-3'-oarbonsäure)

       
EMI0001.0025     
    45 Gewichtsteile dieses Produktes werden  mit 180 Gewichtsteilen Phenol, 86 Gewichts  teilen     Kaliumsulfit    und 100 Gewichtsteilen  Wasser solange zum Sieden erhitzt, bis das  Produkt leicht wasserlöslich geworden ist.  Nach der Entfernung des Phenols durch       Wasserdampfdestillation    wird die entstandene       Farbstoffsulfosäure    in der üblichen Weise  isoliert. Sie ist identisch mit dem nach dem       Verfahren    des Patentes Nr. 191756 erhaltenen  Kondensationsprodukt.



  Process for the preparation of an acidic chromating dye of the anthraquinone series. The subject of this additional patent is a process for the preparation of an acidic chromating dye of the anthrachirron series, which is characterized in that 1-amino-2,4-dibromoanthraquinone is condensed with 4-amino-4'-ogydiphenylmethane-3'-carboxylic acid and dehydrated thus obtained product the 2-position bromine atom through the sulfo group by heating in the presence of phenol,

         Replaced alkali sulfite and water.



  <I> Example: </I> In 1-amino-2,4-dibromoanthraquinone, the bromine atom in the 4-position is exchanged for 4-amino-4'-ogydiphenylmethane-3'-carboxylic acid by heating the components in the presence of anhydrous potassium acetate, copper acetate and good bronze in amyl alcohol as a solvent, 1-amino-2-bromoanthraquinor-4- (p-aminodiphenylmethane-4'-ogy-3'-carboxylic acid) is obtained

       
EMI0001.0025
    45 parts by weight of this product are heated to boiling with 180 parts by weight of phenol, 86 parts by weight of potassium sulfite and 100 parts by weight of water until the product has become readily soluble in water. After the phenol has been removed by steam distillation, the dye sulfonic acid formed is isolated in the usual way. It is identical to the condensation product obtained by the process of Patent No. 191756.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Darstellung eines sauren Chromierungsfarbstoffes der Anthrachinon- reihe, dadurch gekennzeichnet, dass man 1-Amino-2,4-dibromanthrachinon mit 4-Amiiio- 4'-ogydiphenylmethan-3'-carbonsäure konden siert und in dem so erhaltenen Produkt das 2-ständige Bromatom durch die Sulfogruppe durch Erhitzen in Gegenwart von Phenol, Alkalisulfit und Wasser ersetzt. Der so erhaltene Farbstoff färbt Wolle in klaren blauen Tönen, die beim Nachchromieren in ein Graugrün von vorzüglichen Echtheits eigenschaften übergehen. Claim: Process for the preparation of an acidic chromating dye of the anthraquinone series, characterized in that 1-amino-2,4-dibromoanthraquinone is condensed with 4-amino-4'-ogydiphenylmethane-3'-carboxylic acid and in the product thus obtained, the 2-position bromine atom is replaced by the sulfo group by heating in the presence of phenol, alkali sulfite and water. The dye obtained in this way dyes wool in clear blue tones, which turn into a gray-green with excellent fastness properties when re-chrome-plated. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man 1-Amino-2,4-dibrom- anthrachinon mit 4-Amino-4'-ogydiphenyl- methan-3'-carbonsäure durch Erhitzen der Komponenten in Gegenwart von wasserfreiem Kaliumacetat, Kupferacetät und Kupferbronze in Amylalkohol bewirkt. SUBSTANTIAL CLAIM: A method according to claim, characterized in that 1-amino-2,4-dibromo-anthraquinone with 4-amino-4'-ogydiphenyl methane-3'-carboxylic acid by heating the components in the presence of anhydrous potassium acetate, copper acetate and Effects copper bronze in amyl alcohol.
CH194095D 1934-12-22 1935-12-19 Process for the preparation of an acidic chromating dye of the anthraquinone series. CH194095A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE194095X 1934-12-22
DE231035X 1935-10-23
CH188888T 1935-12-19

Publications (1)

Publication Number Publication Date
CH194095A true CH194095A (en) 1937-11-15

Family

ID=27177778

Family Applications (1)

Application Number Title Priority Date Filing Date
CH194095D CH194095A (en) 1934-12-22 1935-12-19 Process for the preparation of an acidic chromating dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH194095A (en)

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